CN my mom claim me since I am 36 if I didn’t work all year and she paid all my bills?

She may be able to claim you as a dependent under the Qualifying Relative rules if you meet all the requirements.

To be a Qualifying Relative -

1. The person cannot be your qualifying child or the qualifying child of any other taxpayer. A child is not the qualifying child of any other taxpayer if the child's parent (or any other person for whom the child is defined as a qualifying child) is not required to file an income tax return or files an income tax return only to get a refund on income tax withheld.
2. The person either (a) must be related to you or (b) must live with you all year as a member of your household.
3. The person's gross income for the year must be less than $4,300 (social security does not count) in 2020
4. You must provide more than half of the person's total support for the year.
5. The person must be a U.S. citizen or a U.S., Canada, or Mexico resident for some part of the year.
6. The person must not file a joint return with their spouse.

If you had less than $4300 of income in 2020  --- NOT including any Social Security ---- then your mom may be able to claim you as a qualifying relative and get a $500 credit for other dependent for claiming you.

CREDIT FOR OTHER DEPENDENTS

https://ttlc.intuit.com/questions/4499708-what-is-the-500-credit-for-other-dependents-family-tax-credit

https://ttlc.intuit.com/community/children-dependents/help/what-does-financially-support-another-person-mean/00/26532